Nail-extractor.



N0. 708,84l'; Patented Sept. 9, I902.

E. N. SPERRY.

NAIL EXTRACTUR.

(Applicatioh filed June a, 1902.

(No Model.)

WITNESSES. INVENTOF? UNITED STATES" PATENT OFFICE;

ELLIE N. SPERRY, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR, BY MESNEASSIGNMENTS, TO THE BRIDGEPORT HARDWARE MANUFACTURING COMPANY, OFBRIDGEPORT, CONNECTICUT, A CORPORATION OF CON- NECTICUT.

SPECIFICATION forming part of Letters Patent No. 708,841, datedSeptember 9, 1902. Application filed June 3, 1902. Serial No. 110,073.(No model.)

T at whom it may concern.-

Be it known that I, ELLIE N. SPERRY, a citizen of the United States,residing at Bridgeport, county of Fairfield, State of Connectiout, haveinvented a new and useful Nail-Extractor, of which the following is aspecification.

My invention has for its object to simplify and strengthen and at thesame time to cheapen the construction of nail-extractors and,furthermore, to greatly improve their operation in use.

With these and other objects in view the invention consists in certainparts, improve- I 5 ments, and combinations, which will be hereinafterdescribed, and then specifically pointed out in the claims hereuntoappended.

In the accompanying drawings, forming part of this specification, Figurel is an elezo vation of my novel nail-extractor, the movable jaw beingin position as when gripping the head of a nail; Fig. 2, a section onthe line 2 2 in Fig. 1; Fig. 3, a section on the line 3 3 in Fig. 1;Fig. 4, a plan view of the blank 2 5 from which the movable jaw isformed; Fig. 5, a front elevation corresponding with Fig. 1, and Fig. 6is a side elevation showing the movable jaw and lever in the extremeopen position.

10 denotes the socket, 11 the handle ordinarily cast integral therewith,and 12 the shank, which moves freely in the socket longitudinally, ismade angular to prevent rotation, and has formed-integral therewith a 35 fixed jaw 13. The metal of the shank on opposite sides of the jaw isremoved to form recesses-14, which terminate in arc-shaped shoulders 15.

The essential feature of the invention is that 40 the movable jaw and jaw-lever are formed integral from a blank of sheet metal. This blank,which is illustrated in Fig. 4, somewhat resembles the conventionalheart shape, with concave instead of convex sides, and is 45 providedwith an approximately heart-shaped opening 16, with two holes 17 in thewings 22 thereof and with a central tailpiece 18. To form the integraljaw and jaw-lever, the blank is folded at its mid-length, the wingslying parallel, but at just sufficient distance apart to permit thefixed jaw to pass between them. The wings of the blank form the sidepieces 19 of the movable jaw, which side pieces when assembled lie,inthe recesses 14, the edges of the side pieces being curved, as at 25, tocorrespond with the curvature of shoulders 15. The tailpiece of theblank is after being folded U-shaped in cross-section and forms thejaw-lever 20 of the integral jaw and jaw-lever. The movable jaw proper,which I have specifically indicated by 21, is formed by closing togetherthe two plies of metal (indicated by 23) on opposite sides of a centrallongitudinal line and between wings 22 at the end of the blank oppositeto the tailpiece. In assembling, the fixed jaw is passed between theside pieces of the movable jaw and a pivot 24 is passed through holes 17in the side pieces and through a hole in the fixed jaw. It will be notedthat the portions of the edges of side pieces 19, which are specificallyindicated by 25 and which lie contiguous to shoulders 15, likewise theshoulders themselves, are arcs of circles of which the pivot is thecenter. Just beyond portions 25 of the edges of the side pieces theoutline of said side pieces changes, so as to form stops 26, (see Fig.6,) which engage the front ends of shoulders 15 and limit the openingmovement of the jaw, and consequently the downward movement of thejaw-lever when not in use, it being important that no spring is used andthat the jaw drops to the open position by gravity. The opposite sidesof the socket are provided with grooves 27, and the shank is locked inthe socket by a pin 28, whose ends lie in the grooves and engage thelower ends of the grooves, as at 29 in Fig. 1, to limit the outwardmovement of the shank. Holes 30 are provided in the walls of the socketin order to permit the pin to be driven through the shank after theshank has been passed into the socket.

The operation in use is identical with other nail-extractors of thisgeneral type, the special advantages in use being that no springs areused, that the leverage is central, so that the jaws cannot get out ofalinement, and that the shank cannot rotate in the socket, so that theimplement is caused to lie in any position in which it may be placed.

Having thus described my invention, I claini-- 1. In a nailextractor thecombination with a shank carrying a fixed jaw of a movable jaw andjaw-lever formed integral from a blank of sheet metal having a centralopening and folded longitudinally to place the sides parallel butseparated, one end of the blank when folded forming a U-shaped jawleverand the plies of metal at the other end being closed together to formthe movable jaw, the fixed jaw in assembling being passed through theopening.

2. In a nail-extractor the combination with a shank carrying a fixed jawand having recesses on opposite sides terminating in arcshapedshoulders, of a movable jaw and jawlever formed integral from a blank ofsheet metal having a central opening and folded longitudinally to placethe sides parallel but separated, one end of the blank when foldedforming a U-shaped jaw-lever, the metal on opposite sides of the openingforming side pieces adapted to lie in the recesses and having curvededges corresponding with the areshaped shoulders and the plies of metalat the end opposite to the jaw-lever being closed together to form themovable jaw.

3. The integral jaw and jaw-lever formed from a blank of sheet metalhaving a central opening and folded longitudinally to place the sidesparallel but separated, one end of said folded blank forming a U-shapedjawlever and the plies at the other end being closed together to formthe jaw.

4. In a nail-extractor the combination with a shank carrying a fixedjaw, of a movable jaw and jaw-lever formed integral from a blank ofsheet metal having a central opening and folded longitudinally to form aU- shaped jaw-lever, the movable jaw being formed by closing togetherthe two plies of metalon opposite sides of the center of the blank atthe end opposite to the jaw-lever, and the fixed jaw being passedthrough the opening.

In testimony whereof I aifix my signature in presence of two witnesses.

' ELLIE N. SPERRY.

Witnesses:

RALPH M. SPERRY, A. M. WOOSTER.

